Adiabatic and fireproof material is to point to porosity density of tall, bulk is low reach thermal conductivity low the fireproof stuff that has effect of certain heat preservation, because heat insolation is fireproof the weight of material is light, call light simple fireproof stuff again normally.
One, fireproof material introduces heat insolation of commonly used heat preservation
1, fiber kind: Heat insulation board, blanket of fiber of pottery and porcelain, cotton, felt, line
2, firebrick kind: Brick of light qualitative firebrick, light qualitative tall aluminous brick, light qualitative clay
3, pouring expect kind: Pledge gently pouring makings
Adiabatic heat preservation is fireproof material every kinds of norms is more, we fall with respect to simple introduction:
1, vacuum thermal insulation board
1.1 vacuum thermal insulation board is characteristic:
(1) construction is convenience, weight is light, managing cost
(2) intensity of high temperature resistant, compression is high, service life is long
(Thermal insulation of 3) high temperature can be good
(Stability of 4) thermal shock is good, mechanical intensity is high
2, fiber of pottery and porcelain
3, light qualitative firebrick
3.1 light qualitative firebrick are characteristic:
(1) density small, porosity is tall, weight is light
(Coefficient of 2) thermal conductivity performance of low, heat preservation is good
(3) sex price is compared tall, use is extensive
3.2 light qualitative firebrick manage change target
2, function of adiabatic and fireproof material
1, bulk density is small, air hole distributings much, porosity is tall, coefficient of thermal conductivity is small.
2, insulation material performance is steady, have clear coefficient of thermal conductivity, applicable temperature range is wider.
3, chemical stability is good, without corrode action.
4, waterproof properties is good, hygroscopic small.
5, flame retardant fire prevention, can light composition small, asbestine or from extinguish sex.
6, heat-resisting shake performance is good.
7, treatment is convenient, construction is convenience.
3, principle of job of adiabatic and fireproof data
The industrial kiln furnace that build by laying bricks or stones of general and fireproof material builds, energy utilization rate is normally inferior, thermal conductance is the important data with necessary design of facilities of expensive tepid work, increase build by laying bricks or stones of insulation material of use heat insolation to build kiln furnace, can reduce the hot loss of wall, improve thermal efficiency, raise yield of hot project facilities, reduce the sources of energy to use up, more the job with efficient economy.
4, adiabatic and fireproof material uses range
The heating furnace that adiabatic and fireproof material uses at the industry such as metallurgy, petrifaction, machinery, electron (boiler setting, hearth and roof) , open-hearth furnace, heat treatment furnace, coking plant furnace (firebox, regenerator) the liner of the kiln furnace such as burner of annealing furnace, temper by dipping in water and fireproof layer, also can regard high temperature as sealed material. Also but special the thermal insulation at hot project facilities and heat-insulation layer, the heat preservation with good quality is fireproof build by laying bricks or stones of replaceable general and compact fireproof material builds material, can save specific power consumption, reduce construction cost.
5, the use temperature of adiabatic and fireproof material
6, classification of adiabatic and fireproof material
1, press use temperature:
(Heat-insulating material of 1) low temperature, use temperature under 900 ℃ , if diatomite is adiabatic brick, asbestine, expand the; such as vermiculite and mineral wool
(In 2) lukewarm heat-insulating material, ℃ of use temperature 900~1200, if expand the; such as brick of pearlite, light qualitative clay and fireproof fiber
(Heat-insulating material of 3) high temperature, use temperature 1100 ℃ , 1500 ℃ , goods of brick of if light qualitative heat insolation is tall aluminous qualitative, light qualitative corundum, hollow ball and high temperature are fireproof fiber.
2, divide by bulk density:
(1) is general heat-insulating material, bulk density is between 0.3-1.3g/cm3;
(2) exceeds light heat-insulating material, bulk density is less than 0.3g/cm3.
3, divide according to the configuration of material:
(1) pink is graininess heat-insulating material: Expand to pledge aluminium powder of pearlite, oxidation, gently pouring makings, light qualitative fireproof concrete
(2) figuration heat-insulating material: Pledge gently fireproof turn
(3) fiber shape heat-insulating material: Fiber of asbestine, fibre glass, pottery and porcelain
(4) is compound heat-insulating material: Heat insulation board, adiabatic coating
4, divide by production method:
(Law of 1) raw material is poriferous goods: Use the product that porous material makes namely, if diatomite reachs its goods;
(2) burn oneself out adds a way goods of light qualitative raw material: Add legal product with combustible, the thing such as pink of the sawdust of easy burn oneself out, carbon is added in pug, make agglomeration goods has certain porosity, basically be; of light qualitative silicon
(3) bubble law is poriferous small qualitative products: Make gotten poriferous product with bubble, blowing agent is added in pug and make poriferous with mechanical method processing small qualitative refractory products.
(4) chemical legal system gets poriferous product: Chemically legal system gets product, carbonate and acid are added in pug, causticity alkaline or the metal is aluminous wait, the gas that have the aid of produces at chemical reaction makes goods forms air hole and make gotten product.
5, divide by chemical and mineral composition or producer goods:
Silicon qualitative, clay is qualitative, tall aluminium is qualitative, magnesian the adiabatic and fireproof material such as qualitative, diatomite, pearlite, siliceous aluminous fiber, alumina.
7, how to choose right adiabatic and fireproof stuff?
1, the use temperature according to kiln furnace.
2, the upper limit of adiabatic and fireproof material uses temperature
3, adiabatic function, include density of thermal conductance, bulk, specific heat to wait.
4, economic benefits, include the price, construction and wear.
8, adiabatic and fireproof material uses a note
1, prohibit piling up on adiabatic and fireproof material goods.
2, set dry and ventilated office, had done the moistureproof work that prevent rain.
3, ask according to the design reasonable the adiabatic and fireproof data that uses corresponding property and construction means.
4, cut fiber, by need dosage, cannot optional tear at.
Efficient adiabatic and fireproof material can bring normal kiln furnace movement for the user not only, more it is to be able to reduce caloric loss, reduce kiln furnace to run cost, of liner of furnace of slow down kiln erode.
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